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Diffstat (limited to 'src/mesa/drivers/dri/tdfx/tdfx_context.c')
-rw-r--r--src/mesa/drivers/dri/tdfx/tdfx_context.c897
1 files changed, 897 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_context.c b/src/mesa/drivers/dri/tdfx/tdfx_context.c
new file mode 100644
index 0000000000..f3a719146d
--- /dev/null
+++ b/src/mesa/drivers/dri/tdfx/tdfx_context.c
@@ -0,0 +1,897 @@
+/* -*- mode: c; c-basic-offset: 3 -*-
+ *
+ * Copyright 2000 VA Linux Systems Inc., Fremont, California.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_context.c,v 1.12 2003/05/08 09:25:35 herrb Exp $ */
+
+/*
+ * Original rewrite:
+ * Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
+ *
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ * Brian Paul <brianp@valinux.com>
+ *
+ */
+
+#include <dlfcn.h>
+#include "tdfx_context.h"
+#include "tdfx_dd.h"
+#include "tdfx_state.h"
+#include "tdfx_vb.h"
+#include "tdfx_tris.h"
+#include "tdfx_render.h"
+#include "tdfx_span.h"
+#include "tdfx_texman.h"
+#include "extensions.h"
+
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "array_cache/acache.h"
+
+#include "tnl/tnl.h"
+#include "tnl/t_pipeline.h"
+
+
+/*
+ * Enable/Disable the extensions for this context.
+ */
+static void tdfxDDInitExtensions( GLcontext *ctx )
+{
+ tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
+
+ _mesa_enable_extension( ctx, "GL_HP_occlusion_test" );
+ _mesa_enable_extension( ctx, "GL_EXT_paletted_texture" );
+ _mesa_enable_extension( ctx, "GL_EXT_texture_lod_bias" );
+
+ if ( fxMesa->haveTwoTMUs ) {
+ _mesa_enable_extension( ctx, "GL_EXT_texture_env_add" );
+ _mesa_enable_extension( ctx, "GL_ARB_multitexture" );
+ }
+
+ if ( TDFX_IS_NAPALM( fxMesa ) ) {
+#if 0
+ _mesa_enable_extension( ctx, "GL_ARB_texture_compression" );
+ _mesa_enable_extension( ctx, "GL_3DFX_texture_compression_FXT1" );
+#endif
+ _mesa_enable_extension( ctx, "GL_EXT_texture_env_combine" );
+ }
+
+#if 0
+ _mesa_enable_extension( ctx, "GL_ARB_texture_cube_map");
+ _mesa_enable_extension( ctx, "GL_NV_texture_rectangle");
+#endif
+
+ if (fxMesa->haveHwStencil) {
+ _mesa_enable_extension( ctx, "GL_EXT_stencil_wrap" );
+ }
+}
+
+
+
+static const struct gl_pipeline_stage *tdfx_pipeline[] = {
+ &_tnl_vertex_transform_stage,
+ &_tnl_normal_transform_stage,
+ &_tnl_lighting_stage, /* REMOVE: fog coord stage */
+ &_tnl_texgen_stage,
+ &_tnl_texture_transform_stage,
+ /* REMOVE: point attenuation stage */
+ &_tnl_render_stage,
+ 0,
+};
+
+
+GLboolean tdfxCreateContext( const __GLcontextModes *mesaVis,
+ __DRIcontextPrivate *driContextPriv,
+ void *sharedContextPrivate )
+{
+ tdfxContextPtr fxMesa;
+ GLcontext *ctx, *shareCtx;
+ __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
+ tdfxScreenPrivate *fxScreen = (tdfxScreenPrivate *) sPriv->private;
+ TDFXSAREAPriv *saPriv = (TDFXSAREAPriv *) ((char *) sPriv->pSAREA +
+ sizeof(XF86DRISAREARec));
+
+ /* Allocate tdfx context */
+ fxMesa = (tdfxContextPtr) CALLOC( sizeof(tdfxContextRec) );
+ if (!fxMesa)
+ return GL_FALSE;
+
+ /* Allocate the Mesa context */
+ if (sharedContextPrivate)
+ shareCtx = ((tdfxContextPtr) sharedContextPrivate)->glCtx;
+ else
+ shareCtx = NULL;
+
+ fxMesa->glCtx = _mesa_create_context(mesaVis, shareCtx, (void *) fxMesa, GL_TRUE);
+ if (!fxMesa->glCtx) {
+ FREE(fxMesa);
+ return GL_FALSE;
+ }
+ driContextPriv->driverPrivate = fxMesa;
+
+ /* Mirror some important DRI state
+ */
+ fxMesa->hHWContext = driContextPriv->hHWContext;
+ fxMesa->driHwLock = &sPriv->pSAREA->lock;
+ fxMesa->driFd = sPriv->fd;
+
+ fxMesa->driScreen = sPriv;
+ fxMesa->driContext = driContextPriv;
+ fxMesa->fxScreen = fxScreen;
+ fxMesa->sarea = saPriv;
+
+ fxMesa->haveHwStencil = ( TDFX_IS_NAPALM( fxMesa ) &&
+ mesaVis->stencilBits &&
+ mesaVis->depthBits == 24 );
+
+ fxMesa->screen_width = fxScreen->width;
+ fxMesa->screen_height = fxScreen->height;
+
+ fxMesa->new_gl_state = ~0;
+ fxMesa->new_state = ~0;
+ fxMesa->dirty = ~0;
+
+ /* NOTE: This must be here before any Glide calls! */
+ if (!tdfxInitGlide( fxMesa )) {
+ FREE(fxMesa);
+ return GL_FALSE;
+ }
+
+ fxMesa->Glide.grDRIOpen( (char*) sPriv->pFB, fxScreen->regs.map, fxScreen->deviceID,
+ fxScreen->width, fxScreen->height, fxScreen->mem, fxScreen->cpp,
+ fxScreen->stride, fxScreen->fifoOffset, fxScreen->fifoSize,
+ fxScreen->fbOffset, fxScreen->backOffset, fxScreen->depthOffset,
+ fxScreen->textureOffset, fxScreen->textureSize, &saPriv->fifoPtr,
+ &saPriv->fifoRead );
+
+ if ( getenv( "FX_GLIDE_SWAPINTERVAL" ) ) {
+ fxMesa->Glide.SwapInterval = atoi( getenv( "FX_GLIDE_SWAPINTERVAL" ) );
+ } else {
+ fxMesa->Glide.SwapInterval = 0;
+ }
+ if ( getenv( "FX_MAX_PENDING_SWAPS" ) ) {
+ fxMesa->Glide.MaxPendingSwaps = atoi( getenv( "FX_MAX_PENDING_SWAPS" ) );
+ } else {
+ fxMesa->Glide.MaxPendingSwaps = 2;
+ }
+
+ fxMesa->Glide.Initialized = GL_FALSE;
+ fxMesa->Glide.Board = 0;
+
+
+ if (getenv("FX_EMULATE_SINGLE_TMU")) {
+ fxMesa->haveTwoTMUs = GL_FALSE;
+ }
+ else {
+ if ( TDFX_IS_BANSHEE( fxMesa ) ) {
+ fxMesa->haveTwoTMUs = GL_FALSE;
+ } else {
+ fxMesa->haveTwoTMUs = GL_TRUE;
+ }
+ }
+
+ fxMesa->stats.swapBuffer = 0;
+ fxMesa->stats.reqTexUpload = 0;
+ fxMesa->stats.texUpload = 0;
+ fxMesa->stats.memTexUpload = 0;
+
+ fxMesa->tmuSrc = TDFX_TMU_NONE;
+
+ ctx = fxMesa->glCtx;
+ if ( TDFX_IS_NAPALM( fxMesa ) ) {
+ ctx->Const.MaxTextureLevels = 12;
+ } else {
+ ctx->Const.MaxTextureLevels = 9;
+ }
+ ctx->Const.MaxTextureUnits = TDFX_IS_BANSHEE( fxMesa ) ? 1 : 2;
+
+ /* No wide points.
+ */
+ ctx->Const.MinPointSize = 1.0;
+ ctx->Const.MinPointSizeAA = 1.0;
+ ctx->Const.MaxPointSize = 1.0;
+ ctx->Const.MaxPointSizeAA = 1.0;
+
+ /* Disable wide lines as we can't antialias them correctly in
+ * hardware.
+ */
+ ctx->Const.MinLineWidth = 1.0;
+ ctx->Const.MinLineWidthAA = 1.0;
+ ctx->Const.MaxLineWidth = 1.0;
+ ctx->Const.MaxLineWidthAA = 1.0;
+ ctx->Const.LineWidthGranularity = 1.0;
+
+ /* Initialize the software rasterizer and helper modules.
+ */
+ _swrast_CreateContext( ctx );
+ _ac_CreateContext( ctx );
+ _tnl_CreateContext( ctx );
+ _swsetup_CreateContext( ctx );
+
+ /* Install the customized pipeline:
+ */
+ _tnl_destroy_pipeline( ctx );
+ _tnl_install_pipeline( ctx, tdfx_pipeline );
+
+ /* Configure swrast to match hardware characteristics:
+ */
+ _swrast_allow_pixel_fog( ctx, GL_TRUE );
+ _swrast_allow_vertex_fog( ctx, GL_FALSE );
+
+ tdfxDDInitExtensions( ctx );
+ tdfxDDInitDriverFuncs( ctx );
+ tdfxDDInitStateFuncs( ctx );
+ tdfxDDInitRenderFuncs( ctx );
+ tdfxDDInitSpanFuncs( ctx );
+ tdfxDDInitTriFuncs( ctx );
+ tdfxInitVB( ctx );
+ tdfxInitState( fxMesa );
+
+ return GL_TRUE;
+}
+
+
+static GLboolean tdfxInitVertexFormats( tdfxContextPtr fxMesa )
+{
+ FxI32 result;
+ int i;
+
+ LOCK_HARDWARE( fxMesa );
+
+ fxMesa->Glide.grGet( GR_GLIDE_VERTEXLAYOUT_SIZE, sizeof(FxI32), &result );
+ for ( i = 0 ; i < TDFX_NUM_LAYOUTS ; i++ ) {
+ fxMesa->layout[i] = MALLOC( result );
+ if ( !fxMesa->layout[i] ) {
+ UNLOCK_HARDWARE( fxMesa );
+ return GL_FALSE;
+ }
+ }
+
+ /* Tiny vertex format - 16 bytes.
+ */
+ fxMesa->Glide.grReset( GR_VERTEX_PARAMETER );
+ fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_Q_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_TINY] );
+
+ /* Non textured vertex format - 24 bytes (Need w for table fog)
+ */
+ fxMesa->Glide.grReset( GR_VERTEX_PARAMETER );
+ fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_NOTEX] );
+
+ /* Single textured vertex format - 32 bytes.
+ */
+ fxMesa->Glide.grReset( GR_VERTEX_PARAMETER );
+ fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE );
+ /*grVertexLayout( GR_PARAM_FOG_EXT, TDFX_FOG_OFFSET, GR_PARAM_ENABLE );*/
+ fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_SINGLE] );
+
+ /* Multitextured vertex format - 40 bytes.
+ */
+ fxMesa->Glide.grReset( GR_VERTEX_PARAMETER );
+ fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_ST1, TDFX_ST1_OFFSET, GR_PARAM_ENABLE );
+ /*fxMesa->Glide.grVertexLayout( GR_PARAM_FOG_EXT, TDFX_FOG_OFFSET, GR_PARAM_ENABLE );*/
+ fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_MULTI] );
+
+ /* Projected texture vertex format - 48 bytes.
+ */
+ fxMesa->Glide.grReset( GR_VERTEX_PARAMETER );
+ fxMesa->Glide.grCoordinateSpace( GR_WINDOW_COORDS );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_XY, TDFX_XY_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Z, TDFX_Z_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Q, TDFX_Q_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_PARGB, TDFX_ARGB_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_ST0, TDFX_ST0_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Q0, TDFX_Q0_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_ST1, TDFX_ST1_OFFSET, GR_PARAM_ENABLE );
+ fxMesa->Glide.grVertexLayout( GR_PARAM_Q1, TDFX_Q1_OFFSET, GR_PARAM_ENABLE );
+ /*fxMesa->Glide.grVertexLayout( GR_PARAM_FOG_EXT, TDFX_FOG_OFFSET, GR_PARAM_ENABLE );*/
+ fxMesa->Glide.grGlideGetVertexLayout( fxMesa->layout[TDFX_LAYOUT_PROJECT] );
+
+ UNLOCK_HARDWARE( fxMesa );
+
+ return GL_TRUE;
+}
+
+
+/*
+ * Initialize the state in an tdfxContextPtr struct.
+ */
+static GLboolean
+tdfxInitContext( __DRIdrawablePrivate *driDrawPriv, tdfxContextPtr fxMesa )
+{
+ /* KW: Would be nice to make one of these a member of the other.
+ */
+ FxI32 result[2];
+
+ if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) {
+ fprintf( stderr, "%s( %p )\n", __FUNCTION__, fxMesa );
+ }
+
+#if DEBUG_LOCKING
+ fprintf(stderr, "Debug locking enabled\n");
+#endif
+
+ if ( fxMesa->Glide.Initialized )
+ return GL_TRUE;
+
+ fxMesa->width = driDrawPriv->w;
+ fxMesa->height = driDrawPriv->h;
+
+ /* We have to use a light lock here, because we can't do any glide
+ * operations yet. No use of FX_* functions in this function.
+ */
+ DRM_LIGHT_LOCK( fxMesa->driFd, fxMesa->driHwLock, fxMesa->hHWContext );
+
+ fxMesa->Glide.grGlideInit();
+ fxMesa->Glide.grSstSelect( fxMesa->Glide.Board );
+
+ fxMesa->Glide.Context = fxMesa->Glide.grSstWinOpen( (FxU32) -1,
+ GR_RESOLUTION_NONE,
+ GR_REFRESH_NONE,
+ fxMesa->Glide.ColorFormat,
+ fxMesa->Glide.Origin,
+ 2, 1 );
+
+ fxMesa->Glide.grDRIResetSAREA();
+
+ DRM_UNLOCK( fxMesa->driFd, fxMesa->driHwLock, fxMesa->hHWContext );
+
+ if ( !fxMesa->Glide.Context )
+ return GL_FALSE;
+
+
+ /* Perform the Glide-dependant part of the context initialization.
+ */
+ FX_grColorMaskv( fxMesa->glCtx, true4 );
+
+ tdfxTMInit( fxMesa );
+
+ LOCK_HARDWARE( fxMesa );
+
+ if ( fxMesa->glCtx->Visual.depthBits > 0 ) {
+ fxMesa->Glide.grDepthBufferMode(GR_DEPTHBUFFER_ZBUFFER);
+ } else {
+ fxMesa->Glide.grDepthBufferMode(GR_DEPTHBUFFER_DISABLE);
+ }
+
+ fxMesa->Glide.grLfbWriteColorFormat( GR_COLORFORMAT_ABGR );
+
+ fxMesa->Glide.grGet( GR_TEXTURE_ALIGN, sizeof(FxI32), result );
+ fxMesa->Glide.TextureAlign = result[0];
+
+ fxMesa->Glide.State = NULL;
+ fxMesa->Glide.grGet( GR_GLIDE_STATE_SIZE, sizeof(FxI32), result );
+ fxMesa->Glide.State = MALLOC( result[0] );
+
+ fxMesa->Fog.Table = NULL;
+ fxMesa->Glide.grGet( GR_FOG_TABLE_ENTRIES, sizeof(FxI32), result );
+ fxMesa->Fog.Table = MALLOC( result[0] * sizeof(GrFog_t) );
+
+ UNLOCK_HARDWARE( fxMesa );
+
+ if ( !fxMesa->Glide.State || !fxMesa->Fog.Table ) {
+ if ( fxMesa->Glide.State )
+ FREE( fxMesa->Glide.State );
+ if ( fxMesa->Fog.Table )
+ FREE( fxMesa->Fog.Table );
+ return GL_FALSE;
+ }
+
+ if ( !tdfxInitVertexFormats( fxMesa ) ) {
+ return GL_FALSE;
+ }
+
+ LOCK_HARDWARE( fxMesa );
+
+ fxMesa->Glide.grGlideGetState( fxMesa->Glide.State );
+
+ if ( getenv( "FX_GLIDE_INFO" ) ) {
+ printf( "GR_RENDERER = %s\n", (char *) fxMesa->Glide.grGetString( GR_RENDERER ) );
+ printf( "GR_VERSION = %s\n", (char *) fxMesa->Glide.grGetString( GR_VERSION ) );
+ printf( "GR_VENDOR = %s\n", (char *) fxMesa->Glide.grGetString( GR_VENDOR ) );
+ printf( "GR_HARDWARE = %s\n", (char *) fxMesa->Glide.grGetString( GR_HARDWARE ) );
+ printf( "GR_EXTENSION = %s\n", (char *) fxMesa->Glide.grGetString( GR_EXTENSION ) );
+ }
+
+ UNLOCK_HARDWARE( fxMesa );
+
+ {
+ const char *debug = getenv("LIBGL_DEBUG");
+ if (debug && strstr(debug, "fallbacks")) {
+ fxMesa->debugFallbacks = GL_TRUE;
+ }
+ }
+
+
+ fxMesa->numClipRects = 0;
+ fxMesa->pClipRects = NULL;
+ fxMesa->scissoredClipRects = GL_FALSE;
+
+ fxMesa->Glide.Initialized = GL_TRUE;
+
+ return GL_TRUE;
+}
+
+
+void
+tdfxDestroyContext( __DRIcontextPrivate *driContextPriv )
+{
+ tdfxContextPtr fxMesa = (tdfxContextPtr) driContextPriv->driverPrivate;
+
+ if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) {
+ fprintf( stderr, "%s( %p )\n", __FUNCTION__, fxMesa );
+ }
+
+ if ( fxMesa ) {
+ if (fxMesa->glCtx->Shared->RefCount == 1 && fxMesa->driDrawable) {
+ /* This share group is about to go away, free our private
+ * texture object data.
+ */
+ struct gl_texture_object *tObj;
+ tObj = fxMesa->glCtx->Shared->TexObjectList;
+ while (tObj) {
+ tdfxTMFreeTexture(fxMesa, tObj);
+ tObj = tObj->Next;
+ }
+ }
+
+ tdfxTMClose(fxMesa); /* free texture memory */
+
+ _swsetup_DestroyContext( fxMesa->glCtx );
+ _tnl_DestroyContext( fxMesa->glCtx );
+ _ac_DestroyContext( fxMesa->glCtx );
+ _swrast_DestroyContext( fxMesa->glCtx );
+
+ tdfxFreeVB( fxMesa->glCtx );
+
+ /* Free Mesa context */
+ fxMesa->glCtx->DriverCtx = NULL;
+ _mesa_destroy_context(fxMesa->glCtx);
+
+ /* free the tdfx context */
+ XFree( fxMesa );
+ }
+}
+
+
+GLboolean
+tdfxUnbindContext( __DRIcontextPrivate *driContextPriv )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
+
+ if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) {
+ fprintf( stderr, "%s( %p )\n", __FUNCTION__, driContextPriv );
+ }
+
+ if ( driContextPriv && (tdfxContextPtr) driContextPriv == fxMesa ) {
+ LOCK_HARDWARE(fxMesa);
+ fxMesa->Glide.grGlideGetState(fxMesa->Glide.State);
+ UNLOCK_HARDWARE(fxMesa);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+tdfxMakeCurrent( __DRIcontextPrivate *driContextPriv,
+ __DRIdrawablePrivate *driDrawPriv,
+ __DRIdrawablePrivate *driReadPriv )
+{
+ if ( TDFX_DEBUG & DEBUG_VERBOSE_DRI ) {
+ fprintf( stderr, "%s( %p )\n", __FUNCTION__, driContextPriv );
+ }
+
+ if ( driContextPriv ) {
+ tdfxContextPtr newFx = (tdfxContextPtr) driContextPriv->driverPrivate;
+ GLcontext *newCtx = newFx->glCtx;
+ GET_CURRENT_CONTEXT(curCtx);
+
+ if ( newFx->driDrawable != driDrawPriv ) {
+ newFx->driDrawable = driDrawPriv;
+ newFx->dirty = ~0;
+ }
+ else if (curCtx == newCtx) {
+ /* same drawable, same context -> no-op */
+ /* Need to call _mesa_make_current2() in order to make sure API
+ * dispatch is set correctly.
+ */
+ _mesa_make_current2( newCtx,
+ (GLframebuffer *) driDrawPriv->driverPrivate,
+ (GLframebuffer *) driReadPriv->driverPrivate );
+ return GL_TRUE;
+ }
+
+ if ( !newFx->Glide.Initialized ) {
+ if ( !tdfxInitContext( driDrawPriv, newFx ) )
+ return GL_FALSE;
+
+ LOCK_HARDWARE( newFx );
+
+ /* FIXME: Force loading of window information */
+ newFx->width = 0;
+ tdfxUpdateClipping(newCtx);
+ tdfxUploadClipping(newFx);
+
+ UNLOCK_HARDWARE( newFx );
+ } else {
+ LOCK_HARDWARE( newFx );
+
+ newFx->Glide.grSstSelect( newFx->Glide.Board );
+ newFx->Glide.grGlideSetState( newFx->Glide.State );
+
+ tdfxUpdateClipping(newCtx);
+ tdfxUploadClipping(newFx);
+
+ UNLOCK_HARDWARE( newFx );
+ }
+
+ _mesa_make_current2( newCtx,
+ (GLframebuffer *) driDrawPriv->driverPrivate,
+ (GLframebuffer *) driReadPriv->driverPrivate );
+
+ if ( !newCtx->Viewport.Width ) {
+ _mesa_set_viewport( newCtx, 0, 0, driDrawPriv->w, driDrawPriv->h );
+ }
+ } else {
+ _mesa_make_current( 0, 0 );
+ }
+
+ return GL_TRUE;
+}
+
+
+/*
+ * Enable this to trace calls to various Glide functions.
+ */
+/*#define DEBUG_TRAP*/
+#ifdef DEBUG_TRAP
+static void (*real_grDrawTriangle)( const void *a, const void *b, const void *c );
+static void (*real_grDrawPoint)( const void *a );
+static void (*real_grDrawVertexArray)(FxU32 mode, FxU32 Count, void *pointers);
+static void (*real_grDrawVertexArrayContiguous)(FxU32 mode, FxU32 Count,
+ void *pointers, FxU32 stride);
+static void (*real_grClipWindow)( FxU32 minx, FxU32 miny, FxU32 maxx, FxU32 maxy );
+
+static void (*real_grVertexLayout)(FxU32 param, FxI32 offset, FxU32 mode);
+static void (*real_grGlideGetVertexLayout)( void *layout );
+static void (*real_grGlideSetVertexLayout)( const void *layout );
+
+static void (*real_grTexDownloadMipMapLevel)( GrChipID_t tmu,
+ FxU32 startAddress,
+ GrLOD_t thisLod,
+ GrLOD_t largeLod,
+ GrAspectRatio_t aspectRatio,
+ GrTextureFormat_t format,
+ FxU32 evenOdd,
+ void *data );
+
+
+static void debug_grDrawTriangle( const void *a, const void *b, const void *c )
+{
+ printf("%s\n", __FUNCTION__);
+ (*real_grDrawTriangle)(a, b, c);
+}
+
+static void debug_grDrawPoint( const void *a )
+{
+ const float *f = (const float *) a;
+ printf("%s %g %g\n", __FUNCTION__, f[0], f[1]);
+ (*real_grDrawPoint)(a);
+}
+
+static void debug_grDrawVertexArray(FxU32 mode, FxU32 Count, void *pointers)
+{
+ printf("%s count=%d\n", __FUNCTION__, (int) Count);
+ (*real_grDrawVertexArray)(mode, Count, pointers);
+}
+
+static void debug_grDrawVertexArrayContiguous(FxU32 mode, FxU32 Count,
+ void *pointers, FxU32 stride)
+{
+ printf("%s mode=0x%x count=%d\n", __FUNCTION__, (int) mode, (int) Count);
+ (*real_grDrawVertexArrayContiguous)(mode, Count, pointers, stride);
+}
+
+static void debug_grClipWindow( FxU32 minx, FxU32 miny, FxU32 maxx, FxU32 maxy )
+{
+ printf("%s %d,%d .. %d,%d\n", __FUNCTION__,
+ (int) minx, (int) miny, (int) maxx, (int) maxy);
+ (*real_grClipWindow)(minx, miny, maxx, maxy);
+}
+
+static void debug_grVertexLayout(FxU32 param, FxI32 offset, FxU32 mode)
+{
+ (*real_grVertexLayout)(param, offset, mode);
+}
+
+static void debug_grGlideGetVertexLayout( void *layout )
+{
+ (*real_grGlideGetVertexLayout)(layout);
+}
+
+static void debug_grGlideSetVertexLayout( const void *layout )
+{
+ (*real_grGlideSetVertexLayout)(layout);
+}
+
+static void debug_grTexDownloadMipMapLevel( GrChipID_t tmu,
+ FxU32 startAddress,
+ GrLOD_t thisLod,
+ GrLOD_t largeLod,
+ GrAspectRatio_t aspectRatio,
+ GrTextureFormat_t format,
+ FxU32 evenOdd,
+ void *data )
+{
+ (*real_grTexDownloadMipMapLevel)(tmu, startAddress, thisLod, largeLod,
+ aspectRatio, format, evenOdd, data);
+}
+
+#endif
+
+
+/*
+ * Examine the context's deviceID to determine what kind of 3dfx hardware
+ * is installed. dlopen() the appropriate Glide library and initialize
+ * this context's Glide function pointers.
+ * Return: true/false = success/failure
+ */
+GLboolean tdfxInitGlide(tdfxContextPtr tmesa)
+{
+ static const char *defaultGlide = "libglide3.so";
+ const char *libName;
+ void *libHandle;
+
+ /*
+ * XXX this code which selects a Glide library filename given the
+ * deviceID may need to be cleaned up a bit.
+ * Non-Linux systems may have different filenames, for example.
+ */
+ switch (tmesa->fxScreen->deviceID) {
+ case PCI_CHIP_BANSHEE:
+ case PCI_CHIP_VOODOO3:
+ libName = "libglide3-v3.so";
+ break;
+ case PCI_CHIP_VOODOO5: /* same as PCI_CHIP_VOODOO4 */
+ libName = "libglide3-v5.so";
+ break;
+ default:
+ {
+ __driUtilMessage("unrecognized 3dfx deviceID: 0x%x",
+ tmesa->fxScreen->deviceID);
+ }
+ return GL_FALSE;
+ }
+
+ libHandle = dlopen(libName, RTLD_NOW);
+ if (!libHandle) {
+ /* The device-specific Glide library filename didn't work, try the
+ * old, generic libglide3.so library.
+ */
+ libHandle = dlopen(defaultGlide, RTLD_NOW);
+ if (!libHandle) {
+ __driUtilMessage(
+ "can't find Glide library, dlopen(%s) and dlopen(%s) both failed.",
+ libName, defaultGlide);
+ __driUtilMessage("dlerror() message: %s", dlerror());
+ return GL_FALSE;
+ }
+ libName = defaultGlide;
+ }
+
+ {
+ const char *env = getenv("LIBGL_DEBUG");
+ if (env && strstr(env, "verbose")) {
+ fprintf(stderr, "libGL: using Glide library %s\n", libName);
+ }
+ }
+
+#define GET_FUNCTION(PTR, NAME) \
+ tmesa->Glide.PTR = dlsym(libHandle, NAME); \
+ if (!tmesa->Glide.PTR) { \
+ __driUtilMessage("couldn't find Glide function %s in %s.", \
+ NAME, libName); \
+ }
+
+ GET_FUNCTION(grDrawPoint, "grDrawPoint");
+ GET_FUNCTION(grDrawLine, "grDrawLine");
+ GET_FUNCTION(grDrawTriangle, "grDrawTriangle");
+ GET_FUNCTION(grVertexLayout, "grVertexLayout");
+ GET_FUNCTION(grDrawVertexArray, "grDrawVertexArray");
+ GET_FUNCTION(grDrawVertexArrayContiguous, "grDrawVertexArrayContiguous");
+ GET_FUNCTION(grBufferClear, "grBufferClear");
+ /*GET_FUNCTION(grBufferSwap, "grBufferSwap");*/
+ GET_FUNCTION(grRenderBuffer, "grRenderBuffer");
+ GET_FUNCTION(grErrorSetCallback, "grErrorSetCallback");
+ GET_FUNCTION(grFinish, "grFinish");
+ GET_FUNCTION(grFlush, "grFlush");
+ GET_FUNCTION(grSstWinOpen, "grSstWinOpen");
+ GET_FUNCTION(grSstWinClose, "grSstWinClose");
+#if 0
+ /* Not in V3 lib, and not used anyway. */
+ GET_FUNCTION(grSetNumPendingBuffers, "grSetNumPendingBuffers");
+#endif
+ GET_FUNCTION(grSelectContext, "grSelectContext");
+ GET_FUNCTION(grSstOrigin, "grSstOrigin");
+ GET_FUNCTION(grSstSelect, "grSstSelect");
+ GET_FUNCTION(grAlphaBlendFunction, "grAlphaBlendFunction");
+ GET_FUNCTION(grAlphaCombine, "grAlphaCombine");
+ GET_FUNCTION(grAlphaControlsITRGBLighting, "grAlphaControlsITRGBLighting");
+ GET_FUNCTION(grAlphaTestFunction, "grAlphaTestFunction");
+ GET_FUNCTION(grAlphaTestReferenceValue, "grAlphaTestReferenceValue");
+ GET_FUNCTION(grChromakeyMode, "grChromakeyMode");
+ GET_FUNCTION(grChromakeyValue, "grChromakeyValue");
+ GET_FUNCTION(grClipWindow, "grClipWindow");
+ GET_FUNCTION(grColorCombine, "grColorCombine");
+ GET_FUNCTION(grColorMask, "grColorMask");
+ GET_FUNCTION(grCullMode, "grCullMode");
+ GET_FUNCTION(grConstantColorValue, "grConstantColorValue");
+ GET_FUNCTION(grDepthBiasLevel, "grDepthBiasLevel");
+ GET_FUNCTION(grDepthBufferFunction, "grDepthBufferFunction");
+ GET_FUNCTION(grDepthBufferMode, "grDepthBufferMode");
+ GET_FUNCTION(grDepthMask, "grDepthMask");
+ GET_FUNCTION(grDisableAllEffects, "grDisableAllEffects");
+ GET_FUNCTION(grDitherMode, "grDitherMode");
+ GET_FUNCTION(grFogColorValue, "grFogColorValue");
+ GET_FUNCTION(grFogMode, "grFogMode");
+ GET_FUNCTION(grFogTable, "grFogTable");
+ GET_FUNCTION(grLoadGammaTable, "grLoadGammaTable");
+ GET_FUNCTION(grSplash, "grSplash");
+ GET_FUNCTION(grGet, "grGet");
+ GET_FUNCTION(grGetString, "grGetString");
+ GET_FUNCTION(grQueryResolutions, "grQueryResolutions");
+ GET_FUNCTION(grReset, "grReset");
+ GET_FUNCTION(grGetProcAddress, "grGetProcAddress");
+ GET_FUNCTION(grEnable, "grEnable");
+ GET_FUNCTION(grDisable, "grDisable");
+ GET_FUNCTION(grCoordinateSpace, "grCoordinateSpace");
+ GET_FUNCTION(grDepthRange, "grDepthRange");
+ GET_FUNCTION(grStippleMode, "grStippleMode");
+ GET_FUNCTION(grStipplePattern, "grStipplePattern");
+ GET_FUNCTION(grViewport, "grViewport");
+ GET_FUNCTION(grTexCalcMemRequired, "grTexCalcMemRequired");
+ GET_FUNCTION(grTexTextureMemRequired, "grTexTextureMemRequired");
+ GET_FUNCTION(grTexMinAddress, "grTexMinAddress");
+ GET_FUNCTION(grTexMaxAddress, "grTexMaxAddress");
+ GET_FUNCTION(grTexNCCTable, "grTexNCCTable");
+ GET_FUNCTION(grTexSource, "grTexSource");
+ GET_FUNCTION(grTexClampMode, "grTexClampMode");
+ GET_FUNCTION(grTexCombine, "grTexCombine");
+ GET_FUNCTION(grTexDetailControl, "grTexDetailControl");
+ GET_FUNCTION(grTexFilterMode, "grTexFilterMode");
+ GET_FUNCTION(grTexLodBiasValue, "grTexLodBiasValue");
+ GET_FUNCTION(grTexDownloadMipMap, "grTexDownloadMipMap");
+ GET_FUNCTION(grTexDownloadMipMapLevel, "grTexDownloadMipMapLevel");
+ GET_FUNCTION(grTexDownloadMipMapLevelPartial, "grTexDownloadMipMapLevelPartial");
+ GET_FUNCTION(grTexDownloadTable, "grTexDownloadTable");
+ GET_FUNCTION(grTexDownloadTablePartial, "grTexDownloadTablePartial");
+ GET_FUNCTION(grTexMipMapMode, "grTexMipMapMode");
+ GET_FUNCTION(grTexMultibase, "grTexMultibase");
+ GET_FUNCTION(grTexMultibaseAddress, "grTexMultibaseAddress");
+ GET_FUNCTION(grLfbLock, "grLfbLock");
+ GET_FUNCTION(grLfbUnlock, "grLfbUnlock");
+ GET_FUNCTION(grLfbConstantAlpha, "grLfbConstantAlpha");
+ GET_FUNCTION(grLfbConstantDepth, "grLfbConstantDepth");
+ GET_FUNCTION(grLfbWriteColorSwizzle, "grLfbWriteColorSwizzle");
+ GET_FUNCTION(grLfbWriteColorFormat, "grLfbWriteColorFormat");
+ GET_FUNCTION(grLfbWriteRegion, "grLfbWriteRegion");
+ GET_FUNCTION(grLfbReadRegion, "grLfbReadRegion");
+ GET_FUNCTION(grGlideInit, "grGlideInit");
+ GET_FUNCTION(grGlideShutdown, "grGlideShutdown");
+ GET_FUNCTION(grGlideGetState, "grGlideGetState");
+ GET_FUNCTION(grGlideSetState, "grGlideSetState");
+ GET_FUNCTION(grGlideGetVertexLayout, "grGlideGetVertexLayout");
+ GET_FUNCTION(grGlideSetVertexLayout, "grGlideSetVertexLayout");
+
+ /* Glide utility functions */
+ GET_FUNCTION(guFogGenerateExp, "guFogGenerateExp");
+ GET_FUNCTION(guFogGenerateExp2, "guFogGenerateExp2");
+ GET_FUNCTION(guFogGenerateLinear, "guFogGenerateLinear");
+
+ /* DRI functions */
+ GET_FUNCTION(grDRIOpen, "grDRIOpen");
+ GET_FUNCTION(grDRIPosition, "grDRIPosition");
+ /*GET_FUNCTION(grDRILostContext, "grDRILostContext");*/
+ GET_FUNCTION(grDRIImportFifo, "grDRIImportFifo");
+ GET_FUNCTION(grDRIInvalidateAll, "grDRIInvalidateAll");
+ GET_FUNCTION(grDRIResetSAREA, "grDRIResetSAREA");
+ GET_FUNCTION(grDRIBufferSwap, "grDRIBufferSwap");
+
+ /*
+ * Extension functions:
+ * Just use dlysm() because we want a NULL pointer if the function is
+ * not found.
+ */
+ /* PIXEXT extension */
+ tmesa->Glide.grStencilFunc = dlsym(libHandle, "grStencilFunc");
+ tmesa->Glide.grStencilMask = dlsym(libHandle, "grStencilMask");
+ tmesa->Glide.grStencilOp = dlsym(libHandle, "grStencilOp");
+ tmesa->Glide.grBufferClearExt = dlsym(libHandle, "grBufferClearExt");
+ tmesa->Glide.grColorMaskExt = dlsym(libHandle, "grColorMaskExt");
+ /* COMBINE extension */
+ tmesa->Glide.grColorCombineExt = dlsym(libHandle, "grColorCombineExt");
+ tmesa->Glide.grTexColorCombineExt = dlsym(libHandle, "grTexColorCombineExt");
+ tmesa->Glide.grAlphaCombineExt = dlsym(libHandle, "grAlphaCombineExt");
+ tmesa->Glide.grTexAlphaCombineExt = dlsym(libHandle, "grTexAlphaCombineExt");
+ tmesa->Glide.grAlphaBlendFunctionExt = dlsym(libHandle, "grAlphaBlendFunctionExt");
+ tmesa->Glide.grConstantColorValueExt = dlsym(libHandle, "grConstantColorValueExt");
+ /* Texus 2 */
+ tmesa->Glide.txImgQuantize = dlsym(libHandle, "txImgQuantize");
+ tmesa->Glide.txImgDequantizeFXT1 = dlsym(libHandle, "_txImgDequantizeFXT1");
+ tmesa->Glide.txErrorSetCallback = dlsym(libHandle, "txErrorSetCallback");
+
+#ifdef DEBUG_TRAP
+ /* wrap the drawing functions so we can trap them */
+ real_grDrawTriangle = tmesa->Glide.grDrawTriangle;
+ tmesa->Glide.grDrawTriangle = debug_grDrawTriangle;
+
+ real_grDrawPoint = tmesa->Glide.grDrawPoint;
+ tmesa->Glide.grDrawPoint = debug_grDrawPoint;
+
+ real_grDrawVertexArray = tmesa->Glide.grDrawVertexArray;
+ tmesa->Glide.grDrawVertexArray = debug_grDrawVertexArray;
+
+ real_grDrawVertexArrayContiguous = tmesa->Glide.grDrawVertexArrayContiguous;
+ tmesa->Glide.grDrawVertexArrayContiguous = debug_grDrawVertexArrayContiguous;
+
+ real_grClipWindow = tmesa->Glide.grClipWindow;
+ tmesa->Glide.grClipWindow = debug_grClipWindow;
+
+ real_grVertexLayout = tmesa->Glide.grVertexLayout;
+ tmesa->Glide.grVertexLayout = debug_grVertexLayout;
+
+ real_grGlideGetVertexLayout = tmesa->Glide.grGlideGetVertexLayout;
+ tmesa->Glide.grGlideGetVertexLayout = debug_grGlideGetVertexLayout;
+
+ real_grGlideSetVertexLayout = tmesa->Glide.grGlideSetVertexLayout;
+ tmesa->Glide.grGlideSetVertexLayout = debug_grGlideSetVertexLayout;
+
+ real_grTexDownloadMipMapLevel = tmesa->Glide.grTexDownloadMipMapLevel;
+ tmesa->Glide.grTexDownloadMipMapLevel = debug_grTexDownloadMipMapLevel;
+
+#endif
+ return GL_TRUE;
+}